IR 05000454/2018010: Difference between revisions

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[[Issue date::May 7, 2018]]
Mr. Bryan Senior VP, Exelon Generation Company, LLC President and CNO, Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT: BYRON STATION, UNITS 1 AND 2NRC DESIGN BASES ASSURANCE INSPECTION (TEAMS) INSPECTION REPORT 05000454/2018010; 05000455/2018010
==Dear Mr. Hanson:==
On February 8, 2018, the U.S. Nuclear Regulatory Commission (NRC) completed a Triennial Baseline Design Bases Assurance Inspection (Teams) at your Byron Station, Units 1 and 2. On April 12, 2018, the NRC inspectors discussed the results of this inspection with Mr. Kanavos, Site Vice President, and other members of your staff. The results of this inspection are documented in the enclosed report. Based on the results of this inspection, the NRC has identified three issues that were evaluated under the risk significance determination process as having very-low safety significance (Green). The NRC has also determined that three violations are associated with these issues. Because the licensee initiated condition reports to address these issues, these violations are being treated as Non-Cited Violations (NCVs), consistent with Section 2.3.2 of the Enforcement Policy. These NCVs are described in the subject inspection report. If you contest the violations or significance of these NCVs, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 205550001; with copies to the Regional Administrator, Region III; the Director, Office of Enforcement; and the NRC Resident Inspector at the Byron Station. If you disagree with a cross-cutting aspect assignment or a finding not associated with a regulatory requirement in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 205550001; with copies to the Regional Administrator, Region III; and the NRC resident inspector at Byron Station. This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations, Part Inspections, Exemptions, and Requests
Sincerely,/RA/ Mark Jeffers, Chief Engineering Branch 2 Division of Reactor Safety Docket Nos. 50454; 50455 License Nos. NPF37; NPF66
===Enclosure:===
IR 05000454/2018010; 05000455/2018010 cc: Distribution via LISTSERV
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Revision as of 22:11, 16 May 2018

Byron Station, Units 1 and 2 - NRC Design Bases Assurance Inspection (Teams) Inspection Report 05000454/2018010; 05000455/2018010 (DRS-J.Benjamin)
ML18127B698
Person / Time
Site: Byron  Constellation icon.png
Issue date: 05/07/2018
From: Jeffers M T
NRC/RGN-III/DRS/EB2
To: Bryan Hanson
Exelon Generation Co, Exelon Nuclear
References
IR 2018010
Download: ML18127B698 (22)
v • d • e


Text

May 7, 2018

Mr. Bryan Senior VP, Exelon Generation Company, LLC President and CNO, Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555

SUBJECT: BYRON STATION, UNITS 1 AND 2NRC DESIGN BASES ASSURANCE INSPECTION (TEAMS) INSPECTION REPORT 05000454/2018010; 05000455/2018010

Dear Mr. Hanson:

On February 8, 2018, the U.S. Nuclear Regulatory Commission (NRC) completed a Triennial Baseline Design Bases Assurance Inspection (Teams) at your Byron Station, Units 1 and 2. On April 12, 2018, the NRC inspectors discussed the results of this inspection with Mr. Kanavos, Site Vice President, and other members of your staff. The results of this inspection are documented in the enclosed report. Based on the results of this inspection, the NRC has identified three issues that were evaluated under the risk significance determination process as having very-low safety significance (Green). The NRC has also determined that three violations are associated with these issues. Because the licensee initiated condition reports to address these issues, these violations are being treated as Non-Cited Violations (NCVs), consistent with Section 2.3.2 of the Enforcement Policy. These NCVs are described in the subject inspection report. If you contest the violations or significance of these NCVs, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 205550001; with copies to the Regional Administrator, Region III; the Director, Office of Enforcement; and the NRC Resident Inspector at the Byron Station. If you disagree with a cross-cutting aspect assignment or a finding not associated with a regulatory requirement in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 205550001; with copies to the Regional Administrator, Region III; and the NRC resident inspector at Byron Station. This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations, Part Inspections, Exemptions, and Requests

Sincerely,/RA/ Mark Jeffers, Chief Engineering Branch 2 Division of Reactor Safety Docket Nos. 50454; 50455 License Nos. NPF37; NPF66

Enclosure:

IR 05000454/2018010; 05000455/2018010 cc: Distribution via LISTSERV

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